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Other Interests (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Mar. 31, 2017
Noncontrolling Interest [Line Items] |  |  |  |  |
Accounts receivable service equity investment | $ 400,000 |  | $ 400,000 |  | $ 400,000
Management fees revenue | 300,000 | $ 300,000 |  | $ 300,000 |
Deficit attributable to noncontrolling interest | (1,231,000) |  | $ (1,231,000) |  | (1,214,000)
Holdings |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Ownership percentage |  |  | 100.00% |  |
Equity method investment aggregate cost | 2,000,000 |  | $ 2,000,000 |  |
Holdings | Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Equity method investment equity | 22,900,000 |  | 22,900,000 |  | 18,700,000
Equity method investment | $ 0 |  | $ 0 |  | $ 0
CONtv |  |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |  |
Ownership percentage | 85.00% |  | 85.00% |  |

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